Knee pad



FIG. 1 is a front-right perspective of applicant's design.

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom perspective view thereof.

The broken lines shown in the drawings represent conventional stitching. 

The ornamental design for a knee pad, as shown and described. 